ECell: Breadboard-Plugin Components Pack _MAKE_LED_EL The slightly oval shape means

The slightly oval shape means that as they screwed-into the nut jams against the slot

but you'll have to check the MicroUSB connector orientation to determine which length/type of Qi module you need

Header connections: Can use 0

Pump weight: 125g

Severe deformations of the pin after used

ECell: Breadboard-Plugin Components Pack _MAKE_LED_EL The slightly oval shape meansBreadboard Plugin Components Pack is a new kit designed for breadboard experiment. It provides many kinds of components, such as resistors, capacitors, diodes, transistor . etc. The module pins are using gold plating technology, solid and durable. It could be plugged on the breadboard directly. easy, reliable and reusable. This innovative approach will solve the following issues caused by using DIP type of components: Hard to read the value (Resistor